Is Heat Flowing Into or Out of the System?

Click For Summary
SUMMARY

The discussion revolves around a thermodynamics problem where the internal energy of a system increases by 200 J due to 900 J of work performed on it. The heat flow magnitude calculated is 700 J. The key conclusion is that the heat flow is "out of" the system, as the work done on the system exceeds the increase in internal energy, resulting in heat being released.

PREREQUISITES
  • Understanding of the First Law of Thermodynamics
  • Knowledge of internal energy concepts
  • Familiarity with work and heat transfer in thermodynamic systems
  • Basic proficiency in energy unit conversions (Joules)
NEXT STEPS
  • Study the First Law of Thermodynamics in detail
  • Learn about heat transfer mechanisms in closed systems
  • Explore examples of work and heat interactions in thermodynamic processes
  • Investigate the implications of energy conservation in thermodynamic systems
USEFUL FOR

Students studying thermodynamics, physics enthusiasts, and anyone preparing for exams involving energy transfer concepts.

Mr. Goosemahn
Messages
24
Reaction score
0

Homework Statement



The internal energy of a system increases by 200 J while 900 J of work are performed on it. What was the magnitude of the heat flow into or out of the system?

Does the heat flow "out of" or "into" the system?

Homework Equations


Don't really need.


The Attempt at a Solution


I found the magnitued already, being 700 Joules, but I'm not entirely sure about the second question.

I think it's "out of," but don't really know. How do I evaluate this aspect of the question?
 
Physics news on Phys.org
Does anybody know?
 

Similar threads

Internal Energy of Gas and Work done
  • · Replies 10 ·
Replies
10
Views
2K
Thermodynamics: Internal Energy, Heat and Work Problem
  • · Replies 1 ·
Replies
1
Views
3K
Heat added to system increases mass
  • · Replies 12 ·
Replies
12
Views
2K
Internal Energy of an Ideal Gas
  • · Replies 4 ·
Replies
4
Views
3K
Correct statement about internal energy
  • · Replies 25 ·
Replies
25
Views
4K
Is internal energy really decreasing in situation 2?
  • · Replies 32 ·
2
Replies
32
Views
3K
Can heat flow into a body without increasing the mean kinetic energy?
  • · Replies 1 ·
Replies
1
Views
1K
Pressure Cooker Internal Energy Problem
  • · Replies 2 ·
Replies
2
Views
2K
Heating up of tyres on the road
  • · Replies 30 ·
2
Replies
30
Views
3K
Change in internal energy of a cylinder
  • · Replies 8 ·
Replies
8
Views
2K